RECON: TNO occultation with 14JN80

Event between 14JN80 and star UC4-418-068673 with event index number of 207408

Geocentric closest approach at 2018/07/23 07:26:02 UTC

J2000 position of star is 17:01:29.1 -06:30:20
Equinox of date position of star is 17:02:25.7 -06:31:49
Stellar brightness R=14.0, use SENSEUP=64
Star is 13 degrees from the moon. Moon is 82% illuminated.
TNO apparent brightness V=22.3

[RECON map]
TNO is 37.9 AU from the Sun and 37.2 AU from the Earth.
The TNO is moving 16.8 km/sec on the sky relative to the star, or, 2.2 arcsec/hr.
The 1-sigma error in the time of the event is 458 seconds.
The 1-sigma cross-track error in the shadow position is 4850 km.
The sky-plane scale is 26972.8 km/arcsec.

The TNO has an absolute magnitude Hv=6.4
Diameter=319.2 km assuming a 5% albedo -- 19.0 sec chord
Diameter=130.3 km assuming a 30% albedo -- 7.7 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 

Star training set for 14JN80, (2018/07/23 07:26UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:32.9 -26:28:18  0.9 21.34   9
13Zet Oph      16:38:11.0 -10:36:12  2.6  7.26   7
23 Oph         16:55:35.3 -06:10:59  5.3  1.75  12
PPM 200270     17:02:34.8 -06:45:44  7.9  0.23  12
PPM 200258     17:01:46.9 -06:35:43  8.8  0.19  12
14JN80         17:02:28.9 -06:31:53 14.0        13
Positions are for equinox of date

This table contains the target star visibility for the RECON network. The observing range has been set to a maximum of 2.0 sigma about the mid-time.
The median site spacing is 18.0 km RECON observability=1.0 and success probability=8.8%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Oroville 07:22:11 -20.4 Dark Up 26.0 221.4 Low 07:07:11 - 07:37:11 1692
Tonasket 07:22:10 -20.6 Dark Up 26.1 221.4 Low 07:07:10 - 07:37:10 1674
Okanogan 07:22:10 -20.9 Dark Up 26.5 221.4 Low 07:07:10 - 07:37:10 1652
Brewster 07:22:11 -21.2 Dark Up 26.7 221.3 Low 07:07:11 - 07:37:11 1635
Manson/Chelan 07:22:12 -21.3 Dark Up 27.1 221.0 Low 07:07:12 - 07:37:12 1627
Entiat 07:22:12 -21.5 Dark Up 27.3 221.0 Low 07:07:12 - 07:37:12 1611
Wenatchee 07:22:11 -21.8 Dark Up 27.5 221.0 Low 07:07:11 - 07:37:11 1594
Ellensburg 07:22:11 -22.1 Dark Up 27.9 220.9 Low 07:07:11 - 07:37:11 1566
Yakima 07:22:10 -22.5 Dark Up 28.2 221.0 Low 07:07:10 - 07:37:10 1535
Toppenish/White Swan 07:22:09 -22.8 Dark Up 28.3 221.3 Low 07:07:09 - 07:37:09 1514
Goldendale 07:22:11 -23.2 Dark Up 28.9 221.0 Low 07:07:11 - 07:37:11 1480
Pasco 07:22:05 -23.0 Dark Up 27.8 222.6 Low 07:07:05 - 07:37:05 1475
The Dalles 07:22:12 -23.4 Dark Up 29.3 220.8 Low 07:07:12 - 07:37:12 1470
George/Umatilla 07:22:05 -23.3 Dark Up 28.2 222.5 Low 07:07:05 - 07:37:05 1453
PNWRO 07:22:04 -23.3 Dark Up 27.9 222.9 Low 07:07:04 - 07:37:04 1450
Maupin 07:22:11 -23.8 Dark Up 29.5 221.0 Low 07:07:11 - 07:37:11 1434
Madras/Culver 07:22:09 -24.4 Dark Up 30.0 221.2 Low 07:07:09 - 07:37:09 1391
Sisters 07:22:10 -24.6 Dark Up 30.4 220.8 Up 07:07:10 - 07:37:10 1375
Redmond 07:22:09 -24.7 Dark Up 30.3 221.3 Up 07:07:09 - 07:37:09 1363
Bend 07:22:10 -24.9 Dark Up 30.5 221.2 Up 07:07:10 - 07:37:10 1349
Oregon Observatory 07:22:09 -25.0 Dark Up 30.7 221.1 Up 07:07:09 - 07:37:09 1338
La Pine/Gilchrist 07:22:09 -25.2 Dark Up 30.9 221.1 Up 07:07:09 - 07:37:09 1323
North Lake 07:22:07 -25.7 Dark Up 30.9 221.9 Up 07:07:07 - 07:37:07 1272
Chiloquin 07:22:09 -26.2 Dark Up 31.9 221.2 Up 07:07:09 - 07:37:09 1239
Paisley 07:22:05 -26.3 Dark Up 31.1 222.5 Up 07:07:05 - 07:37:05 1218
Klamath Falls 07:22:09 -26.6 Dark Up 32.1 221.5 Up 07:07:09 - 07:37:09 1209
Tulelake 07:22:08 -26.9 Dark Up 32.1 221.9 Up 07:07:08 - 07:37:08 1179
Lakeview 07:22:03 -26.9 Dark Up 31.4 222.9 Up 07:07:03 - 07:37:03 1171
Cedarville 07:22:02 -27.5 Dark Up 31.8 223.3 Up 07:07:02 - 07:37:02 1111
Fall River/Burney 07:22:06 -27.8 Dark Up 32.8 222.3 Up 07:07:06 - 07:37:06 1100
Susanville 07:22:02 -28.5 Dark Up 32.9 223.3 Up 07:07:02 - 07:37:02 1027
Greenville 07:22:03 -28.8 Dark Up 33.2 223.2 Up 07:07:03 - 07:37:03 1011
Gimple 07:22:03 -28.8 Dark Up 33.2 223.3 Up 07:07:03 - 07:37:03 1009
Quincy 07:22:04 -29.0 Dark Up 33.4 223.3 Up 07:07:04 - 07:37:04 993
Portola 07:22:01 -29.2 Dark Up 33.2 223.8 Up 07:07:01 - 07:37:01 971
Reno 07:21:58 -29.5 Dark Up 33.1 224.6 Up 07:06:58 - 07:36:58 931
Carson City 07:21:58 -29.9 Dark Up 33.3 224.7 Up 07:06:58 - 07:36:58 899
Gardnerville 07:21:58 -30.1 Dark Up 33.4 224.9 Up 07:06:58 - 07:36:58 876
Yerington 07:21:55 -30.2 Dark Up 33.1 225.5 Up 07:06:55 - 07:36:55 866
Hawthorne 07:21:53 -30.7 Dark Up 33.1 226.2 Up 07:06:53 - 07:36:53 811
Lee Vining 07:21:54 -31.2 Dark Up 33.8 226.0 Up 07:06:54 - 07:36:54 774
Tonopah 07:21:47 -31.3 Dark Up 32.6 227.7 Up 07:06:47 - 07:36:47 734
Bishop 07:21:51 -31.9 Dark Up 33.8 227.0 Up 07:06:51 - 07:36:51 701
Niwot 07:21:10 -29.7 Dark Up 24.1 237.4 Low 07:06:10 - 07:36:10 630
Lone Pine 07:21:49 -32.7 Dark Up 34.1 227.6 Up 07:06:49 - 07:36:49 624
Beatty 07:21:44 -32.5 Dark Up 33.2 228.7 Up 07:06:44 - 07:36:44 617
CPSLO 07:21:58 -33.5 Dark Up 36.5 225.8 Up 07:06:58 - 07:36:58 574
Indian Springs 07:21:40 -33.0 Dark Up 32.7 229.9 Up 07:06:40 - 07:36:40 559
Henderson 07:21:37 -33.6 Dark Up 32.6 230.8 Up 07:06:37 - 07:36:37 492
Searchlight/Boulder City 07:21:36 -34.2 Dark Up 33.0 231.1 Up 07:06:36 - 07:36:36 438
Wildwood 07:21:49 -35.1 Dark Up 36.1 228.4 Up 07:06:49 - 07:36:49 408
Patrick 07:21:32 -34.3 Dark Up 32.3 232.1 Up 07:06:32 - 07:36:32 406
Laughlin/Bullhead City 07:21:35 -34.5 Dark Up 32.9 231.6 Up 07:06:35 - 07:36:35 401
Kingman/Dolan Springs 07:21:33 -34.5 Dark Up 32.6 232.0 Up 07:06:33 - 07:36:33 390
Mohave Valley 07:21:35 -34.8 Dark Up 33.1 231.7 Up 07:06:35 - 07:36:35 375
DCO 07:21:29 -34.7 Dark Up 32.1 232.9 Up 07:06:29 - 07:36:29 359
Lake Havasu City 07:21:33 -35.2 Dark Up 33.2 232.1 Up 07:06:33 - 07:36:33 331
Idyllwild 07:21:41 -35.7 Dark Up 35.2 230.4 Up 07:06:41 - 07:36:41 324
Parker 07:21:33 -35.5 Dark Up 33.4 232.4 Up 07:06:33 - 07:36:33 297
Blythe 07:21:34 -36.0 Dark Up 33.9 232.4 Up 07:06:34 - 07:36:34 256
Calipatria 07:21:37 -36.4 Dark Up 34.8 231.8 Up 07:06:37 - 07:36:37 234
Yuma 07:21:33 -37.0 Dark Up 34.5 232.8 Up 07:06:33 - 07:36:33 169

Azimuth is measured in degrees eastward from north. North is at an azimuth of 0, due East is at an azimuth of 90 degrees, due South is 180, and due West is 270.

Do not use the listing below for the RECON CPC 1100 telescopes. This is provided for other non-team facilities.

Star training set for 14JN80, (2018/07/23 07:26UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 21.34   9
13Zet Oph      16:37:09.6 -10:34:01  2.6  7.26   7
23 Oph         16:54:35.7 -06:09:15  5.3  1.75  12
PPM 200270     17:01:34.9 -06:44:11  7.9  0.23  12
PPM 200258     17:00:47.1 -06:34:09  8.8  0.19  12
14JN80         17:01:29.1 -06:30:20 14.0        12
Positions are for J2000

Event circumstances last updated at 2017/08/02 16:54:48 UT

Marc W. Buie, Southwest Research Institute

RECON